Rails server does not start by command “Rails s”

Question

I\'m new to ruby and rails and i installed rails in to the ubuntu. but when i go to the start server by typing \"rails s\" it doesn\'t start and comes following message . bu

Answer 1

Once you have created the project and cd'd into it:

Use script/server if you are on rails version 2.x

Use script/rails server if you are on rails version 3.x

Use bin/rails server if you are on rails version 4.x